Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study

Table 2

Composition of the feedstocks used in the BMP and semicontinuous tests.

Experiment type	Substrates in feedstock	Substrates	Composition (w/w)	Nomenclature
Batch	Single	SS	100	100% SS
		PF	100	100% PF
		GT	100	100% GT
Batch	Two	SS : PF	99 : 01	1% PF
		SS : PF	98 : 02	2% PF
		SS : PF	90 : 10	10% PF
		SS : PF	75 : 25	25% PF
		SS : PF	50 : 50	50% PF
		SS : GT	99 : 01	1% GT
		SS : GT	98 : 02	2% GT
		SS : GT	90 : 10	10% GT
		SS : GT	75 : 25	25% GT
		SS : GT	50 : 50	50% GT
Batch	Three	SS : PF : GT	95 : 2.5 : 2.5	5% FW^#
		SS : PF : GT	80 : 10 : 10	20% FW^#
		SS : PF : GT	50 : 25 : 25	50% FW^#
		SS : PF : GT	33.3 : 33.3 : 33.3	66.67% FW^#
Semicontinuous	Single	SS	100	100% SS
Semicontinuous	Two	SS : PF	99 : 1	1% PF
		SS : PF	98 : 2	2% PF
		SS : GT	99 : 1	1% GT
		SS : GT	98 : 2	2% GT
Semicontinuous	Three	SS : PF : GT	95 : 2.5 : 2.5	5% FW^#

^#FW = mixture of PF and GT at ratio 50 : 50 (w/w).